California · Nonprofit
BAY AREA TUMOR INSTITUTE
BAY AREA TUMOR INSTITUTE (California) receives grants from 12 organizations whose IRS filings report $191,266 to it, the largest being AMERICAN ENDOWMENT FOUNDATION ($66,500). 7 of them have funded it in more than one year, and 58% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
Three funders worth looking at
Grantmakers with no record of funding this organization, ranked by how strongly the co-funder graph and the mission embeddings agree. The evidence is in section 03.
- Fred Hutchinson Cancer Centershared fundersportfolio match
- Alliance for Clinical Trials in Oncology Foundationshared funders
- Sontag Foundationportfolio match
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended.
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Government-grant reliance: 2017 8% · 2018 49% · 2019 66% · 2020 83% · 2021 67% · 2022 85% · 2023 78% · 2024 89%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 9 of the last 9 reported years ran a deficit.
reserve
Who funds it, year by year
2017 → 2023: the base broadened from 3 funders to 4 funders, grant income rose $20k → $33k.
6 of 12 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 58% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of BAY AREA TUMOR INSTITUTE’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
BAY AREA TUMOR INSTITUTE leans on a few funders — its largest provides 35% of grant income and the top three 67%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
81% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund BAY AREA TUMOR INSTITUTE.
Largest funder’s share by year: 2017 50% · 2018 44% · 2019 56% · 2020 56% · 2021 98% · 2022 32% · 2023 66% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How long its funders stay
29% of BAY AREA TUMOR INSTITUTE's funders are still giving 3 years after their first grant; 58% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
58% of BAY AREA TUMOR INSTITUTE's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Of the $81k that is directly attributable, 61% of it comes from California funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $111k arriving through sponsors registered in 5 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Funders to approach
Grantmakers that don’t fund you yet, surfaced two ways: they back organizations that share your funders, or their grantees resemble your mission. The ones both signals agree on come first. Your 12 funders put you under-funded among the 276 organizations that share them.
- Fred Hutchinson Cancer Centershared fundersportfolio matchWA · backs 35 organizations that share your funders · its grantees resemble your mission
- Alliance for Clinical Trials in Oncology Foundationshared fundersIL · backs 83 organizations that share your funders
- Sontag Foundationportfolio matchits grantees resemble your mission
- American Society of Clinical Oncology Incportfolio matchits grantees resemble your mission
- Washington Research Foundationportfolio matchits grantees resemble your mission
- American Society for Radiation Oncologyportfolio matchits grantees resemble your mission
- H Lee Moffitt Cancer Center and Research Institute Incportfolio matchits grantees resemble your mission
- Erasca Foundationportfolio matchits grantees resemble your mission
- The Hill Family Charitable Foundationportfolio matchits grantees resemble your mission
- Tap Cancer Out Incportfolio matchits grantees resemble your mission
- John Wayne Cancer Foundationportfolio matchits grantees resemble your mission
- Swim Across America Incportfolio matchits grantees resemble your mission
From the co-funder graph (funders backing at least two comparable organizations, shrunk for grantee count, donor-advised and mega-funds excluded) and the universe embeddings. A research starting point; overlap is association, not a guarantee of fit.
Government funding BAY AREA TUMOR INSTITUTE receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $5.6M on record.
- Department of Health and Human Services$5.6M
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
Organizations like BAY AREA TUMOR INSTITUTE
Nonprofits whose mission and program text most resemble this one, by semantic similarity over the universe of US filings — the closest peers, and often the clearest route to shared or prospective funders.
In California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
98% of spending goes to programs.
Governance
Public support
96%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for BAY AREA TUMOR INSTITUTE: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds BAY AREA TUMOR INSTITUTE?
- BAY AREA TUMOR INSTITUTE (California) receives grants from 12 organizations whose IRS filings report $191,266 to it, the largest being AMERICAN ENDOWMENT FOUNDATION ($66,500). 7 of them have funded it in more than one year, and 58% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does BAY AREA TUMOR INSTITUTE have?
- IRS filings report 12 organizations giving $191,266 in grants to BAY AREA TUMOR INSTITUTE, 7 of which have funded it in more than one year.
- Who is the largest funder of BAY AREA TUMOR INSTITUTE?
- AMERICAN ENDOWMENT FOUNDATION is the largest funder on record, with $66,500 in grants. The full list of funders is on this page.
- How can an organization like BAY AREA TUMOR INSTITUTE find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 12funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported August 27, 2026. What this page cannot tell you · view filing